Today, they are at the centre of British cultural life and among our greatest exports - the acting dames, an exclusive club of stage and screen greats who were honoured for their services to drama. But, lurking in the BBC archives - from long before their talents were recognised by royal decree - we find the early work and some career defining moments of Judi Dench, Maggie Smith, Diana Rigg and Helen Mirren. David Tennant narrates the story of our dames of classic drama, from a golden age of British television drama.